The whisker plot with the data provided should includes a range that goes from 7 to 49, and a median of 23.
How to draw a whisker plot?A whisker plot, also known as a box plot, is a graphical representation of a data set that shows the distribution of the data along with some important statistical information, such as the median, quartiles, and outliers. It is particularly useful for comparing the distribution of different data sets or for identifying potential outliers in a data set.
To create a whisker plot, follow these steps:
Collect the data you want to represent and arrange it in order from smallest to largest.Find the median, which is the middle value of the data set. If the data set has an even number of values, the median is the average of the two middle values.Find the lower quartile (Q1), which is the median of the lower half of the data set.Find the upper quartile (Q3), which is the median of the upper half of the data set.Calculate the interquartile range (IQR), which is the difference between Q3 and Q1.Learn more about whisker plots in https://brainly.com/question/2742784
#SPJ1
Find the lengths of each triangle…
2x ft
6x ft
200ft
Answer:
[tex]2x=20\sqrt{10}\; \textsf{ft} \approx 63.25\; \sf ft[/tex]
[tex]6x=60\sqrt{10}\; \textsf{ft} \approx 189.74\; \sf ft[/tex]
Step-by-step explanation:
Assuming the given triangle is a right triangle, we can use Pythagoras Theorem to calculate the value of x and then find the measurers of the side lengths.
Pythagoras Theorem[tex]\large{\boxed{a^2+b^2=c^2}[/tex]
where:
a and b are the legs of the right triangle.c is the hypotenuse (longest side) of the right triangle.From inspection of the given diagram:
a = 2xb = 6xc = 200Substitute these values into the formula and solve for x.
[tex]\begin{aligned} (2x)^2+(6x)^2&=200^2\\2^2\cdot x^2+6^2\cdot x^2&=40000\\4x^2+36x^2&=40000\\40x^2&=40000\\x^2&=1000\\x&=\sqrt{1000}\\x&=\sqrt{100 \cdot 10}\\x&=\sqrt{100}{\sqrt{10}\\x&=10\sqrt{10}\end{aligned}[/tex]
Substitute the found value of x into the expression for each side length.
[tex]2x=2 \cdot 10\sqrt{10}=20\sqrt{10}[/tex]
[tex]6x=6\cdot 10\sqrt{10}=60\sqrt{10}[/tex]
Therefore, the exact side lengths of the given right triangle are:
[tex]20\sqrt{10}\; \textsf{ft}, \;\;60\sqrt{10}\; \textsf{ft}, \;\; 200\; \textsf{ft}[/tex]
The side lengths to the nearest hundredth are:
63.25 ft189.74 ft200 ftWrite an Equation for the ellipse. The center is (1, -3).
The standard form of the equation of the ellipse is (x - 1)² / 16 + (y + 3) / 9 = 1.
How to define the standard form of the equation of an ellipse
In this problem we find the representation of an ellipse on Cartesian plane, whose center is at (h, k) = (1, - 3), whose major semiaxis length is 4 units and whose minor semiaxis length is 3 units. The standard form of the equation of the ellipse is described below:
(x - h)² / a² + (y - k)² / b² = 1
Where:
(h, k) - Coordinates of the center.a - Length of the major semiaxis.b - Length of the minor semiaxis.If we know that (h, k) = (1, - 3), a = 4 and b = 3, then the standard form of the equation of the ellipse is:
(x - 1)² / 16 + (y + 3) / 9 = 1
To learn more on ellipses: https://brainly.com/question/19507943
#SPJ1
Pete has an anvil used for metal working, he models the base as two trapeziums the anvil applied of 834 newton's
The pressure using Pete's model based on the information will be 2.79 N/cm³
What is a trapezium?A trapezium (often known as a trapezoid in some parts of the world) is a four-sided figure with at least one set of parallel lines. These two lines are often referred to as the bases, and the other sides as its legs.
Isosceles Trapezium is a type of trapezium has its legs of equal length, and its base angles possessing an equivalent measure..
Pete has an anvil used for metal working, he models the base as two trapeziums the anvil applied of 834 newton's
The pressure using Pete's model based on the information will be:
= 834 / 299.25
= 2.79 N/cm³
Learn more about trapezium on
https://brainly.com/question/1410008
#SPJ1
Answer:
1.54
Step-by-step explanation:
Trapezium=
12+24=36
36 x (length) 15 = 540cm^2
Pressure= force/area
832/540 = 1.54N/cm^2
The following transactions are taken from the record of ABC
(a) Commenced business with cash of Rs. 1,00,000 and Machine of Rs. 50,000.
(b) Purchased goods for cash Rs. 30,000 and credit Rs. 10,000.
(c) Sold goods for cash Rs. 25,000 and credit Rs. 15,000.
(d)
Goods taken by the owner for private use Rs. 2,000.
Cash paid to creditors Rs 8,000.
(e)
(f) Cash received from debtors Rs. 14,500 in full settlement.
(g) Received a loan of Rs. 5,000 from Mr. Dipendra.
(h) He introduced additional capital Rs. 40,000.
Required: Accounting equation
Ans: A = Rs. 1,94,500, C= Rs. 1,87,500, L = Rs. 7,000
The accounting equation is:
Assets = Rs. 2,19,500
Liabilities = Rs. 1,000
Capital = Rs. 2,10,500
How to determine the accounting equationThe accounting equation is:
Assets = Liabilities + Capital
(a) Commenced business with cash of Rs. 1,00,000 and Machine of Rs. 50,000.
Assets = Cash + Machine = Rs. 1,00,000 + Rs. 50,000 = Rs. 1,50,000
(b) Purchased goods for cash Rs. 30,000 and credit Rs. 10,000.
Assets = Cash + Inventory = Rs. 1,30,000
Liabilities = Accounts Payable = Rs. 10,000
(c) Sold goods for cash Rs. 25,000 and credit Rs. 15,000.
Assets = Cash + Accounts Receivable + Inventory = Rs. 1,70,000
Liabilities = Accounts Payable = Rs. 10,000
(d) Goods taken by the owner for private use Rs. 2,000.
Assets = Cash + Accounts Receivable + Inventory - Drawings = Rs. 1,68,000
(e) Cash paid to creditors Rs 8,000.
Assets = Cash + Accounts Receivable + Inventory - Drawings = Rs. 1,60,000
Liabilities = Accounts Payable - Rs. 8,000 = Rs. 2,000
(f) Cash received from debtors Rs. 14,500 in full settlement.
Assets = Cash + Inventory - Drawings = Rs. 1,74,500
Liabilities = Accounts Payable - Rs. 8,000 = Rs. 2,000
Capital = Rs. 1,70,500
(g) Received a loan of Rs. 5,000 from Mr. Dipendra.
Assets = Cash + Inventory - Drawings = Rs. 1,79,500
Liabilities = Accounts Payable - Rs. 8,000 + Loan Payable Rs. 5,000 = Rs. 1,000
Capital = Rs. 1,74,500
(h) He introduced additional capital Rs. 40,000.
Assets = Cash + Inventory - Drawings = Rs. 2,19,500
Liabilities = Accounts Payable - Rs. 8,000 + Loan Payable Rs. 5,000 = Rs. 1,000
Capital = Rs. 2,10,500
Therefore, the accounting equation is:
Assets = Rs. 2,19,500
Liabilities = Rs. 1,000
Capital = Rs. 2,10,500
Learn more about Accounting equation at https://brainly.com/question/28246336
#SPJ1
Solve for the missing angle measurements for angles a, b, c, and d
Note that the angle measurements are given as follows:
A = 145° (Sum of angles on a straight line.
B = 35° Opposite angles
C = 145° Opposite angels
D) = 35° supplementary angels.
What is the explanation of the above statements?a) Note that Sum of angles on a straight line=180° and are therefore supplementary
b) All opposite angle are equal, since ∠b is opposite to 35°, then ∠b = 35°
c) 145° is also opposite to ∠c
d) when two angles are supplementary, it means that they sum up to 180°
Learn more about angle measurements;
https://brainly.com/question/31186705
#SPJ1
Full Question:
Solve for the missing angle measurements for angles a, b, c, and d
See the attached imge
What is the numerical expression that represents the sun of eight squared and thirty two
The numerical expression that represents the sum of eight squared and thirty two will be 96.
A numerical expression is a mathematical expression that consists of numbers and mathematical operations such as addition, subtraction, multiplication, division, and exponentiation.
The numerical expression that represents the sum of eight squared and thirty two is
= 8² + 32
= 64 + 32
= 96.
The question is incomplete and the complete question is '' What is the numerical expression that represents the sum of eight squared and thirty two''.
To know more about numerical expression here
https://brainly.com/question/27089337
#SPJ1
3 + 1 + 2 − 7 = + 22
Answer: The answer is false
Answer:
False
Step-by-step explanation:
If you were asking true or false it is false
The question is done below has square roots and exponents. Pretty easy.
Answer: D. -1
Step-by-step explanation:
Your equation:
[tex]\sqrt[4]{(\sqrt[3]{64}) ^{2} } =(\frac{1}{2} )^{x}[/tex] >We are going to work from the inside first then out
The cube root of 64 is 4 because 4*4*4=64
[tex]\sqrt[4]{(4) ^{2} } =(\frac{1}{2} )^{x}[/tex] > 4² = 4*4=16
[tex]\sqrt[4]{(16) } =(\frac{1}{2} )^{x}[/tex] > the 4th root of 16 is 2 because 2*2*2*2=16
[tex]2 =(\frac{1}{2} )^{x}[/tex] > if you have the same bases you can set the
exponents equal. They are not the same but we
are going to make them the same.
[tex]2^{1} =(\frac{1}{2} )^{x}[/tex] > 2 is the same as 2^1, i can make the bases the
same if I can make the 2 a reciprocal. That
happens when I take the negative exponent of the
number
[tex](\frac{1}{2} )^{-1} =(\frac{1}{2} )^{x}[/tex] >Now that my bases are the same, I can make the
exponents =
-1 = x
What is the surface area of a rectangular prism that has a length of 4 cm, a height of 14 cm, and a width of 15 cm?
Answer:
the surface area of the rectangular prism is 572cm².
Step-by-step explanation:
The surface area of a rectangular prism can be calculated using the formula 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height. Plugging in the values you provided, we get:
2 * 4cm * 15cm + 2 * 4cm * 14cm + 2 * 15cm * 14cm = 572 cm²
So the surface area of the rectangular prism is 572 square centimeters.
A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 2 tables is $25.
The cost of each chair and table is $2.5 and $8.75 respectively.
Given that the total cost to rent 3 chairs and 2 tables is $25 and total cost to rent 5 chairs and 6 tables is $65.
We need to find the cost of each chair and table,
Let the cost of each chair and table be x and y respectively,
3x+2y = 25.......(i)
5x+6y = 65.........(ii)
Multiply the equation (i) by 3 and subtract ii from i,
9x+6y = 75 - (5x+6y = 65)
4x = 10
x = 2.5
Put x = 2.5 in any equation to find the value of y,
3(2.5)+2y = 25
2y = 17.5
y = 8.75
Hence, the cost of each chair and table is $2.5 and $8.75 respectively.
Learn more about linear algebra click;
https://brainly.com/question/1952076
#SPJ1
In 1949, Jackie Robinson hit .342 for the Brooklyn Dodgers; in 1973, Rod Carew hit .350 for the Minnesota Twins. In the 1970s the mean batting average was
.261 and the standard deviation was .0317. Determine which
batting average was more impressive.
In 1973, the batting average of .350 of Rod Carew is more impressive as it has a higher z-score of 2.81
To establish which batting average was more spectacular, we must compare it to the mean and standard deviation of 1970s hitting averages. The case of Jackie Robinson,
z = (x - μ) / σ
z = (.342 - .261) / .0317
z = 2.56
For Rod Carew,
z = (x - μ) / σ
z = (.350 - .261) / .0317
z = 2.81
A higher z-score indicates a more impressive performance relative to the mean. As a result, Rod Carew's .350 batting average was more spectacular, as it had a higher z-score of 2.81 than Jackie Robinson's z-score of 2.56.
To know more about standard deviation, visit,
https://brainly.com/question/475676
#SPJ1
Lara chooses a number less than 20
She divides it by 2 and then adds 6
She then divides this result by 3
Her answer is 4.5
What was the number she started with?
Working backward, the number that Lara started with in performing the mathematical operations was 15.
How the number is determined:We can use mathematical operations to determine the initial number that Lara started with.
Mathematical operations include addition, subtraction, division, multiplication, etc.
Let the number that Lara started with = x
x < 20
x ÷ 2 + 6 = y
y ÷ 3 = 4.5
y = 13.5 (4.5 x 3)
x ÷ 2 + 6 = 13.5
x ÷ 2 = 7.5
x = 15 (7.5 x 2)
Thus, Lara started performing the mathematical operations with 15 and got a final result of 4.5.
Learn more about mathematical operations at https://brainly.com/question/4721701.
#SPJ1
PLEASE HELP BRO PLEASEEEE
The likelihood that a milkshake chosen at random will be a sloppy, thin, flavourless mess is 0.62.
Define probabilityThe possibility or chance of an event occurring is measured by probability. It is a number between 0 and 1, where 0 denotes that the occurrence is impossible and 1 denotes that it is unavoidable. By dividing the number of favourable outcomes by the total number of potential outcomes, the probability of an occurrence is determined.
a. The milkshake will most likely turn out to be a watery, thin, flavourless mess (2, 4, 7).
The likelihood that a milkshake chosen at random would be a sloppy, thin, flavourless mess is equal to the final result of the milkshake will be a watery, thin, flavourless mess.
=2+4+7/21
=13/21
=0.62
b. No association can be removed from this table. We are unable to forecast the result of any event since the overall number of events is random.
To know more about outcomes, visit:
https://brainly.com/question/28740329
#SPJ1
A mathematics teacher wanted to see the correlation between test
scores and homework. The homework grade (x) and test grade (y) are
given in the accompanying table. Write the linear regression equation
that represents this set of data, rounding all coefficients to the nearest
hundredth. Using this equation, find the projected test grade, to the
nearest integer, for a student with a homework grade of 61.
Homework Grade (x) 72 53 90 77 82 74 78 74 83Test Grade (y)
75 39 81 70 83 78 75 70 85
Answer:
54
Step-by-step explanation:
You want the approximate test grade of a student with a homework grade of 61, using a linear regression equation for the given homework and test scores.
RegressionThe linear regression equation can be found using any of a number of calculators, apps, or spreadsheets. The attachment shows the equation is approximately ...
y ≈ 1.22x -20.01
For a homework score of 61, the expected test grade is ...
y = 1.22(61) -20.01
y ≈ 54
The student's projected test grade is 54.
__
Additional comment
If the regression coefficients are used to their full precision, the projected test score is about 54.6, which rounds to 55.
<95141404393>
The scale of this blueprint of an art gallery is 1 in 48 ft. find the actual lengths of the following walls.
The calculated values of the actual lengths of the walls are AB = 144 ft, CD = 288 ft, EF = 528 ft and EF = 240 ft
Finding the actual lengths of the walls.From the question, we have the following parameters that can be used in our computation:
Scale of blueprint = 1 in : 48 ft
This means that
Scale = 48 ft/1in
Calculating the actual lengths of the walls, we have
AB = 3in * 48 ft/1in
AB = 144 ft
CD = 6in * 48 ft/1in
CD = 288 ft
EF = 11in * 48 ft/1in
EF = 528 ft
FG = 5in * 48 ft/1in
EF = 240 ft
Hence, the actual lengths of the walls are AB = 144 ft, CD = 288 ft, EF = 528 ft and EF = 240 ft
Read more about scale drawings at
https://brainly.com/question/29229124
#SPJ1
I need the answers and a explanation if possible
Wwe can reject the null hypothesis and deduce that there is sufficient empirical evidence to validate the presumption that seatbelts are competent for mitigating fatalities.
How to explain the hypothesisNull Hypothesis: There is no discernible distinction between the proportion of fatalities among occupants wearing seat belts and those without.
Alternative Hypothesis: The portion of fatalities experienced by those in vehicles donning seatbelts will be demonstrably lower in comparison to individuals not utilizing them.
The z-value was computed, finding that (0.0113 - 0.0024) / √(0.0047 * (1 - 0.0047) * (1/2915 + 1/7848)) = 12.43.
For a two-tailed test at a 0.05 significance level with 2915 plus 7848 less 2 = 10761 degrees of freedom, the critical value range would be ±1.96. With the calculated z-value of 12.43 surpassing the critical threshold, we can reject the null hypothesis.
Learn more about hypothesis on
https://brainly.com/question/606806
#SPJ1
Find the missing side lengths. Leave your answers as radicals in simplest form.
The value of missing side lengths are,
m = 4/√3
h = 2 / √3
We have to given that;
A triangle is shown in figure.
Now, We can formulate;
sin 60° = 2 / m
√3/2 = 2 / m
m = 4/√3
cos 60° = h / m
1/2 = h / (4/√3)
1/2 = √3h / 4
2 = √3h
h = 2 / √3
Thus, The value of missing side lengths are,
m = 4/√3
h = 2 / √3
Learn more about the triangle visit;
brainly.com/question/1058720
#SPJ1
HELP ASAP!! 15 POINTS!!
Based on the information, we can infer that the correct graph/table is option D.
How to identify the correct table/chart?To identify the correct chart or table, we must identify the information about the data that Emily uses each year. She uses 360GB each year, in this case, to identify the relationship we must divide the amount of data she uses by the number of months she has in a year:
360GB / 12 months = 30 GB/month
In accordance with the above, we must identify the table or graph that represents this relationship. In this case it would be table D because it shows an increasing relationship of 1 month with 30gb, 2 months with 60gb, 3 months with 90gb, 4 months with 120gb, and so on.
Learn more about relationship in: https://brainly.com/question/31248849
#SPJ1
show that f= 16 is
R
equivalent to
fpm = 12
RPM in fluid flow through porous media
NEED HELP ASAP PLS AND THX PIC IS ATTACHED
Step-by-step explanation:
You would need a calculator in the degree function I believe, but basically for Number 1,
you would set it up in calculator as Sin ^-1 (6/9) or write it down as Sin(X)=(6/9)
2. would be Cos(45)= (X/4) meaning you'd do Cos(45) times 4.
3. is basically Tan(60) =(x/4) so it's basically Tan(60) times 4.
make sure your calculator is in degree mode ? Sorry, I don't remember if you need to be in radiant or degree mode. I can comment or make an edit when I remember.
how many teams completed the escape room in 45 minutes or less
The answer to the question about how many teams completed the escape room in 45 minutes or less is 6.
What is a Dot Plot?A dot plot is a type of chart used to display the distribution of a dataset. It is also known as a dot chart, strip plot, or dot graph. In a dot plot, each data point is represented by a dot placed along a horizontal or vertical axis.
Dot plots are useful for showing the distribution of a small to moderate-sized dataset, and are especially helpful when you want to compare the distribution of two or more datasets side by side. They are also useful for identifying outliers or gaps in the data
How did we find this answer?If we count the amount of dots on 45 and before 45 and add them up, the answer is 6
Read more about dot plots here:
https://brainly.com/question/25957672
#SPJ1
The model shown below is a perfect cube with a volume of 27 cubic units. Which statement is true about all perfect cubes?
A. A perfect cube represents 3 times the area of a face of the cube.
B. A perfect cube represents the sum of 9 edge lengths of the cube.
C. A perfect cube represents the volume of a cube with equal integer side lengths.
D. A perfect cube represents the surface area of a cube with equal integer side lengths.
The correct statement which is true about all perfect cubes is,
⇒ A perfect cube represents 3 times the area of a face of the cube.
We have to given that;
The model shown below is a perfect cube with a volume of 27 cubic units.
Now, We can formulate;
⇒ V = 27 cubic units.
⇒ V = 3 × 9 cubic units.
⇒ V = 3 × 3² cubic units.
Thus, The correct statement which is true about all perfect cubes is,
⇒ A perfect cube represents 3 times the area of a face of the cube.
Learn more about the rectangle visit:
https://brainly.com/question/2607596
#SPJ1
What is deviance? Identify the term and provide an overview. Think of a time when you or a
friend used informal negative sanctions. To what act of deviance were you or your friend
responding? Did this reaction help maintain social control? Is it possible to function as a society
without the threat of physical violence to keep people under control? Why or why not?
Deviance is a term used in sociology to describe behavior that violates social norms or expectations. It refers to any behavior that is considered outside of the established rules and expectations of a society or culture.
What are informal negative sanctions?Informal negative sanctions are the social disapproval or punishment that people receive for violating social norms. An example of informal negative sanctions could be a group of friends ostracizing another friend for breaking a social rule, such as not showing up to a planned event.
In terms of the act of deviance, it could be anything from breaking a minor social norm to committing a serious crime. The reaction of informal negative sanctions is often an attempt to maintain social control by encouraging conformity to the established norms of the group or society.
While physical violence is not necessary to maintain social control, the threat of punishment is an important part of any functioning society. People follow the rules and norms of society because they know that if they do not, there will be consequences. However, it is important to note that violence and punishment should not be the only means of social control. Positive reinforcement, such as rewards for good behavior, can also be an effective way of encouraging conformity to social norms.
In summary, deviance refers to behavior that violates social norms, and informal negative sanctions are a way of enforcing social norms. The threat of physical violence is not necessary to maintain social control, but consequences for deviant behavior are essential for any functioning society.
to know more about deviance
brainly.com/question/16022748
#SPJ1
Please help!!
If someone could explain how to solve this question I would appreciate it!
2430+15√2=
Answer: The given expression, 2430 + 15√2, cannot be simplified further as it is already in its simplest form. However, you can approximate its value using a calculator or by using a decimal approximation of the square root of 2.
Using a calculator, you can directly evaluate the expression to get:
2430 + 15√2 ≈ 2462.11
Alternatively, you can use a decimal approximation of the square root of 2, which is approximately 1.414:
2430 + 15√2 = 2430 + 15 * 1.414 ≈ 2430 + 21.21 = 2451.21
Therefore, 2430 + 15√2 is approximately equal to 2462.11 or 2451.21, depending on the method used for approximation.
Step-by-step explanation:
What are the period and amplitude of the function?
Answer:
period : π ; amplitude : 2
Step-by-step explanation:
Correct me if I'm wrong!!
Find the missing dimensions of each figure. Round your answer to the nearest tenth. PLEASE HELP
answer is : r=1.6 in since the volume of cylinder is :
[tex]\pi {r}^{2} h[/tex]
3
Florence Griffith-Joyner was an Olympic runner who set the women's world records
for the 100- and 200-meter races in 1988. She completed the 100-meter race in
10.49 seconds and the 200-meter race in 21.34 seconds. How much faster did
Florence run in the 100-meter race than in the 200-meter race, in meters per second?
A 10.85
B 0.1085
C 0.0016
D 0.16
Florence was 0.16 m/s faster in the 100-meter race than in the 200-meter race
What is an equation?An equation is an expression that shows the relationship between numbers and variables using mathematical operators.
Speed is the ratio of distance travelled to time taken. It is given by:
Speed = distance / time
She completed the 100-meter race in 10.49 seconds and the 200-meter race in 21.34 seconds. Hence:
For 100 meters:
Speed = 100 m / 10.49 s = 9.53 m/s
For 200 meters:
Speed = 200 m / 21.34 s = 9.37 m/s
The speed difference = 9.53 m/s - 9.37 m/s = 0.16 m/s
Florence was 0.16 m/s faster
Find out more on equation at: https://brainly.com/question/17145398
#SPJ1
Find m/_I. I need help on solving this problem please?
Answer:
∠ I = 60°
Step-by-step explanation:
using the tangent ratio in the right triangle
tan I = [tex]\frac{opposite}{adjacent }[/tex] = [tex]\frac{HJ}{IJ}[/tex] = [tex]\frac{3\sqrt{30} }{3\sqrt{10} }[/tex] = [tex]\frac{\sqrt{30} }{\sqrt{10} }[/tex] = [tex]\sqrt{\frac{30}{10} }[/tex] = [tex]\sqrt{3}[/tex] , then
∠ I = [tex]tan^{-1}[/tex] ([tex]\sqrt{3}[/tex] ) = 60°
Answer:
60°
Step-by-step explanation:
You want the measure of angle I in right triangle HIJ, given that the side opposite is 3√30 and the side adjacent is 3√10.
TangentThe tangent relation is ...
Tan = Opposite/Adjacent
In this triangle, ...
tan(I) = (3√30)/(3√10) = √(30/10) = √3
Then the angle is ...
I = arctan(√3) = 60°
The measure of angle I is 60°.
__
Additional comment
The trig functions of 30° and 45° and their relationships to each other are based on the side relationships of the two "special" right triangles:
30°-60°-90° triangle has side ratios 1 : √3 : 2
45°-45°-90° triangle has side ratios 1 : 1 : √2
Of course, side lengths are in the same order as their opposite angles.
The mnemonic SOH CAH TOA can help you remember the necessary relationships:
Sin = Opposite/HypotenuseCos = Adjacent/HypotenuseTan = Opposite/AdjacentFind the missing angle:
Can someone give me the answer to the following 4 trig questions using sum and difference formulas
1. Therefore, the exact value of cos(105°) is (√2 - √6)/4.
2. Therefore, the exact value of sin(75°) is (√6 + √2)/4.
3. Therefore, the exact value of tan(105°) is (√3 + 1)/(3 - √3).
4. Therefore, the exact value of cos(105°)cos(15°) is (2 + 2√3)/8.
What is trigonometry?A branch of mathematics known as trigonometry is concerned with the study of triangles and the correlations between their sides and angles.
It entails computing different triangle measurements and attributes using trigonometric functions including sine, cosine, and tangent.
Trigonometry is an essential component of calculus and other advanced mathematical studies, and it has applications in many disciplines including engineering, physics, navigation, astronomy, and architecture.
1. We can use the formula cos(A + B) = cos(A)cos(B) - sin(A)sin(B) with A = 60° and B = 45°. Then:
cos(105°) = cos(60° + 45°)
= cos(60°)cos(45°) - sin(60°)sin(45°)
= (1/2)(√2/2) - (√3/2)(√2/2)
= (√2 - √6)/4
Therefore, the exact value of cos(105°) is (√2 - √6)/4.
2. We can use the formula sin(A + B) = sin(A)cos(B) + cos(A)sin(B) with A = 45° and B = 30°. Then:
sin(75°) = sin(45° + 30°)
= sin(45°)cos(30°) + cos(45°)sin(30°)
= (√2/2)(√3/2) + (√2/2)(1/2)
= (√6 + √2)/4
Therefore, the exact value of sin(75°) is (√6 + √2)/4.
3. We can use the formula tan(A + B) = (tan(A) + tan(B))/(1 - tan(A)tan(B)) with A = 60° and B = 45°. Then:
tan(105°) = tan(60° + 45°)
= (tan(60°) + tan(45°))/(1 - tan(60°)tan(45°))
= (√3 + 1)/(3 - √3)
Therefore, the exact value of tan(105°) is (√3 + 1)/(3 - √3).
4. We can use the formula cos(A + B) = cos(A)cos(B) - sin(A)sin(B) with A = 60° and B = -45°. Then:
cos(105°)cos(15°) = cos(60° - 45°)cos(15°)
= [cos(60°)cos(-45°) - sin(60°)sin(-45°)]cos(15°)
= [(1/2)(√2/2) - (√3/2)(-√2/2)]cos(15°)
= (√2 + √6)/4 * cos(15°)
= (√2 + √6)/4 * (√6 + √2)/4
= (2 + 2√3)/8
Therefore, the exact value of cos(105°)cos(15°) is (2 + 2√3)/8.
Learn more about trigonometry:
https://brainly.com/question/31347150
#SPJ1